2011 AUDI S8 steering

248 Tires and wheels
Tire service life
The service life of tires depends on a lot of
different things including proper installation
and balancing, correct tire pressure and driv·
ing style.
F ig. 1 86 Tire tread: tread wea r ind icators (TWI)
( r------ ,1
\ ...__ _____ ____,.
F ig. 1 87 Rotat ing t ires for more ev en wea r
Tread Wear Indicator (TWI)
The origi na l t ires on your veh icle have
1/16 inch (1.6 mm) high "wear indicators"
c::> fig . 186 running across the tread. Depend ·
i ng on the make, there will be six to eight of
them evenly p laced around the t ire. Marks on
the tire sidewa ll (for example "TWI" or other
symbols) indicate the positions of the tread
wear ind icators . Worn t ires must be replaced .
Different fig ures may apply in o ther countries
c::> & .
Tire p ressure
Incorrect tire pressure causes premature wear
a nd can cause sudden t ire blow-out. For th is
reason, tire pressure must be checked at least
once a month
c::> page 244 .
Driving style
Driving fast aro und curves, heavy acce leration
and hard braking increase tire wear.
Rotating tires for more even wear
F o r all four tires on your ve hicl e to h ave the
same service life, we recommen d that the
front and rear t ires are rotated according to
the tire manufact urer's suggested tire rota·
tion intervals. Please remember the follow­
ing :
- Tire rotation intervals may differ from the
vehicle service inte rva ls o utlined in your
Warranty
& Maintenance booklet .
- The longer one tire is used in one location
on the vehicle, the more it wears at certain
points; therefore, we recommend that y ou
follow the tire manufacturer's suggested
tire rotation intervals .
- Veh icles w ith front-wheel dr ive experience
more tread wear on the fro nt w heels com·
pa red to all-wheel drive (quattro ®).
- Please rotate tires as shown
c::> fig. 187.
-Extra care must be taken when rotating di·
rection-specific tires
c::> page 267 .
Wheel balancing
The wheels on new ve hicles are balanced .
However, various situations during eve ryday
driving can cause them to become unba l·
anced, resulting in vibrat ions you can usually
feel t hrough the steer ing wheel.
Un balanced whee ls must be rebalanced to
avoid excessive wear on steering, suspension
and t ires. A whee l m ust also be reba lanced
when a new tire is insta lled.
Incorrect wheel alignment
Incor rect wheel alig nment can cause exces­
sive tire wear, impai ring the safety of the veh i·
de . If tires show excessive wear, have the
whee l alignment checked by an authorized
Audi dealer or qualif ied workshop .
All Wheel Drive
Vehicles with q uattro ® mus t always have tires
of the same size, construction and tread type .
For details see
c::> page 194 . ..,.

remain continuously illuminated. This se­
quence will continue upon subsequent vehicle
start-ups as long as the malfunction exists.
When the malfunction indicator is illuminat­
ed, the system may not be able to detect or
signal low tire pressure as intended . TPMS
malfunct ions may occur for a variety of rea­
sons, including the installation of replace­ ment or alternate tires or wheels on the vehi­
cle that prevent the TPMS from functioning
properly . Always check the TPMS malfunct ion
tellta le after replacing one or more t ires or
wheels on your vehicle to ensure that the re­
placement or alternate tires and wheels allow
the TPMS to continue to function properly.
Tire pressure indicator appears
Applies to vehicles: with tire pressure monitoring system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
Fig. 189 Display : underinflatio n warning
Fig. 190 Display: System malfu nctio n
Using the ABS sensors, the tire pressure moni­
toring system compares the tire tread circum­
ference and vibration characteristics of the in­
dividual tires . If the pressure decreases in one
or more tires, this is indicated in the instru-
Tires and wheels 257
ment cluster with a warning symbol [I) and a
message
r::!) fig. 189.
The tire pressure monitoring system must be
reset via MMI each t ime the pressures are ad ­
justed (e.g. when switching between partial
and full load pressure) or after changing or re­
placing a tire on your vehicle
r::!) page 258. You
can find the recommended tire pressures for
your vehicle on the label on driver's side 8-pil­
lar
r::!) page 242 .
Tire tread circumference and vibration charac­
teristics can change and cause a tire pressure
warning if:
- the tire pressure in one or more tires is too
low,
- the tire has structural damage,
- the tir e pressure was changed, wheels rotat-
ed or replaced but the TPMS was not reset
r::!) page 258 .
Warning symbols
[I) Loss of pressure in at least one tire co& .
Check the tire or tires and replace or repa ir if
necessary. The indicator light
[I) in the instru­
ment cluster also illuminates
r::!) page 11.
Check/correct the pressures of all four tires
and resetTPMS via MMI.
lli§ffl (Tire Pressure Monitoring System) Tire
pressure! System malfunction.
If llilffl appears after switching the ignition
on or while driving co
fig. 190 and the indica­
tor light
[I) in the instrument cluster blinks
for approximately one minute and then stays
on, there is a system malfunction . See your
authorized Audi dea ler as soon as possible .
A WARNING
-If the tire pressure indicator appears in
the instrument cluster display , one or
more of your tires is significant ly under­
inflated . Reduce your speed immediately
and avoid any hard steering or braking
maneuvers. Stop as soon as possible and
check the tires and their pressures . In­
flate the tire pressure to the proper pres-
sure as indicated on the vehicle's tire .,.

Fuse panel@ (brown)
No. Equ ipment
1 H eadlight contro l switch
I 2
Ignition lock (key identifica-
tion)
3
Rear door control mod ule
(driver's side)
5 Horn
6 Interior lights (head liner)
Steering column lever, mul-
8
tifunction steering wheel
controls, steering wheel
heating
10
Power steering column ad-
j ustment
11 Driver door control module
12
D iagnostic co nnector, light/
rain sensor
Power steering column ad-
justment
15
P ower stee ring, A/C com-
pr esso r
16 Brake booster (VS FSI)
Fuse panel © (black )
No. Equipment
1 F ront seat heating
2 Windshield wiper
3 Fr ont exterior lighting
4 Sun roof
5 Dr iver power window
6 Driver seat (pneumatic)
7 Panoramic sunroof
8 Dynamic steering
9 Fr
ont exterior lighting
I 10
Windshield/headlight *
washe r system
11
Rear power w indow (driver's
side)
12 Panoramic sunroof
Amp s
5
5
7,5 15
7,5
10/5
5
7,5 10
25
20
15
Amps
30 30
30
20
30
15
20 35
30
35
30
4 0
Fu se s and bulb s 269
Front passenger side cockpit fuse
assignment
Fi g. 2 07 Fro nt passe nger s id e co ckpit: f use pa nel w it h
plast ic brac ket
Fuse panel ® (black)
No . Equipment Amps
1 Anti-theft alarm system 5
2
Transmission control mod-
15 ule
3 Front climate control fan 40
4
Engine supply 35
6
Engine cont ro l module 5
7
Front passenger door con-7,5
t rot module
8
Fron t passe nger power w in-
30 dow
9 ESP control module 10
1 0
E S P cont ro l modu le 2 5
11
Right rear power window 30
12
Fron t passe nger seat 15

2 70 Fu ses and bulb s
Luggage compartment fuse assignment
Fig. 208 Luggage co mpar tment: fuse panel with plastic b racket
Fu se pan el A (black ) Fuse panel
@ (b lac k)
I
No.
Equ ipment Amps No
. Equipment
Amps .
l!l button, data logger, diag-
1 nostic con
nector, adaptive
5 10
Rear seat heating, refrigera-
5 j tor, interior rearview mirror
lighting system 11 Dynam
ic steer ing 5
2 Networking gateway
5 12
Selector lever, BCM-2
5
3 adaptive air suspension
5 13 Audi side ass
ist 5
4 Parking system 5 14 Engine control module
5
5 Steering column
lever
5 1
5 Starter 40
I 6 Suspension control system
5
sensor left headlight/Headlight
'
16
10/5
range control system
.
7 Belt tensioners, airbag con-
5
trol module Fuse pan el@ (red)
No. Equipment Amps
Heated washer fluid nozzles,
Homelink (garage door
8 opener), night vision system
5
control module, sport differ- 1
left reversib
le be lt tens ioner
25
2 II
R_ight reversible belt ten-
25
s1oner
ential, ioniser 3
Starter diagnos
is
5
9
Electromechan ica l park ing
5
brake con tro l module 4 DC/DC converter
7,5
5 Adaptive cruise control 7,5

290 Index .:..:..:..::....::.....:..._ ___________________________ _
Doors
M echanical child safety lock .. .... .. .. 38
Power child safety lock . . . . . . . . . . . . . . 38
Driver information system
CD/radio display . . . . . . . . . . . . . . . . . . . . 23
Door/r ear lid warning . . . . . . . . . . . . . . . 23
Efficiency program . . . . . . . . . . . . . . . . . . 25
Exterior temperature display ... .. .. .. 23
On-board computer . . . . . . . . . . . . . . . . . 24
Driver seating position ............... 128
drive select .................... ... . 106
adaptive air suspension/sport ........ 106
Adaptive dampers ........ .. .. .... . 106
Cornering light ......... .. .. .. .. .. . 106
Dynamic steering ......... .... .... . 106
Safety belt tensioner ....... .... ... . 106
Sport differential .......... ... .... . 106
Driv ing safely .............. ... .. .. . 127
Driving through water ............... 199
Driving tim e . . . . . . . . . . . . . . . . . . . . . . . . 24
Duplicate key . . . . . . . . . . . . . . . . . . . . . . . 29
Dynamic steering . . . . . . . . . . . . . . . 22, 106
E
Easy entry feature ............ .. .... .. 78
Efficiency program . . . . . . . . . . . . . . . . . . . 25
Fu el economy messages . . . . . . . . . . . . . 25
Other equipment . . . . . . . . . . . . . . . . . . . 25
Elect rical accessoires (sockets) . . . . . . . . . 63
Electrical accessories (sockets) . . . . . . . . . 69
Electromechanical parking brake
Emergency braking . . . . . . . . . . . . . . . . . 83
Operation ......................... 81
Parking .... ................ ..... .. 82
Releasing and closing ........... ... . 81
Starting assist ............ ... .... .. 82
Starting from rest ........ .. .. .... .. 82
Starting off with a trailer ..... .. .. .. . . 82
Warning/indicator lights ..... .. .... .. 15
Electronic differential lock (EDL) ... ... . 190
Warning/indicator lights ......... .. .. 19
E lectronic immobilizer . . . . . . . . . . . . 26, 30
Electronic power co ntrol (EPC)
warning/indicator light ..... .... ..... 20
Electronic speed limiter . . . . . . . . . . . . . . . 28 Electronic
stabilization program (ESP) . . 190
Warning/indicator lights ............. 18
Emergency actuation
Doors .. .. .. .. .. ............. .. .. . 3S
Parking lock ... .. ............. .... 116
Pow er sunroof ... .................. 41
R ea r lid ... .... .. ............. ..... 37
Emerg ency braking . ... .......... .. .. . 83
Emergency flasher .............. .. .. . 44
Warning/indicator lights ........ .. .. . 22
Emergency operation Panoramic sunroof ................ .. 42
Sun shade (roof) . ............... .. . 42
Emerg ency starting ... .......... .. .. 273
Emergency towing .................. 275
Emergency warning triangle ......... . 259
Energy management . ........... .. .. 195
Engine Compartment .. .. ... .......... .. .. 224
Coolant ......... .. .............. . 229
Data 282
starting ........................... 79
Start ing with jumper cables ......... 273
Stopping .. .. .. .. .. ........... .... . 80
E ngine compartment ............... . 224
Closing the hood ... ..... ........ .. 223
Opening the hood .......... ...... . 222
Safety instructions ............... .. 222
Working in the eng ine compartment .. 222
Engine coolant .. ................... 229
Adding coolant ... .. ..... ........ .. 230
Checking the engine coo lant level ..... 229
Expansion tank ................ .... 229
Malfunction symbol ............ .... . lS
Radiator fan ..... ................ . 231
Temp erature gauge ................ . 10
Engine oil ..... ... .. .............. . 224
Adding ... .. .. .. .. ........... .... 227
Additives .. .. .. .. ............. .. .. 227
Changing ..... .. ................. 228
Checking the engine oil leve l ......... 227
Indications and conditions requiring ex-
tra checking ..... ............. .... 227
Indicator light ... ... .......... .. .. . 17
Oil consumpt ion .. ............. .... 226
Oil grades ..... .................. . 224
Oil level symbol . . . . . . . . . . . . . . . . . . . . 20

292 Index
Glossary of tire and loading termino logy 239
Glove compartment (cooled) . . . . . . . . . . . 70
G ross Vehicle Weight Rating (GVWR) ... 279
H
Headlig hts
C leaning system .............. .... .. 48
Defective . . . . . . . . . . . . . . . . . . . . . . . . . 21
Headlight range control . . . . . . . . . 21, 43
Washer reservoir .......... ... .. .. . 236
Head restraints . . . . . . . . . . . . . . . . . 61, 131
Adjusting . ............... ... .... . 131
H eated
exterior mirrors .......... .. .. .. .. .. 51
rear window . . . . . . . . . . . . . . . . . . . . . . . 76
seats . ..... ................ ..... .. 76
windshield washer spray no zzles . ..... 48
H eating ... .. .... ......... .. .. .. .. .. 74
Heavy clothing and safety belts . . . . . . . . 140
High beam ... ................ ..... .. 45
H igh voltage warn ing label ...... .. .. . 279
Homelink ® universal remote control . . . 124
H ood (release lever) . ..... .. .. .. .. .. . 222
Horn ..... .. ................ ... .. ... 8
How are child restraint system anchors re-
lated to child safety ........ .. .. .... . 181
Ho w many airbags does my vehicle have? 152 Instruments
and controls
General illustration . . . . . . . . . . . . . . . . . . 8
Instrument cluster ................ .. 10
Interior lighting Amb ience lighting ............. .... . 46
Front and rear ... ................ .. 46
Intermittent (windshield w ipers) ..... .. 48
J
Jack 260
Jump-starting ..... ................ . 273
Jumper cables ... .. .. .. ...... ... .. .. 274
K
Key ........... ... .. ................ 29
Battery replacement master key . . . . . . . 30
Emergency key ... ............. .. .. . 29
Key replacement . . . . . . . . . . . . . . . . . . . 29
Master key . . . . . . . . . . . . . . . . . . . . . . . . 29
Mechanical key ... ............. ..... 30
Valet key . ..... .. .. .............. .. 29
Kick-down (automatic transmission) .... 115
Knee airbags .. .. .. .. ....... .... .... 161
Descrip tion .... ............. ...... 161
How they work . .. .......... ...... . 162
Important safety instructions .. .. .. .. 162
How often should I check my t ire pres-
L
sures? .. .. .. ................ ... ... 245
How safety belt pretensioners work ... . 143
H ydroplaning 249
I
Immobilizer . . . . . . . . . . . . . . . . . . . . . . . . 26
Important things to do before driving .. 127
Im properly worn safety belts . .. .. .. .. . 143
Indicator lights
refer to Warning/ind icator lights .. .... 11
Infant seats . . . . . . . . . . . . . . . . . . . . . . . 17 4
Installing child safety seats
Safety belts ............. .. .. .... . 178
Installing the upper tether strap on the
anchorage . .. .......... ...... ... .. . 186
Instruments Adjusting the lighting ..... .... .... .. 47 Lane assist
Activating and deactivating ......... .. 95
Cleaning camera area .... ...... .. .. 208
Description .. .. .. ............. .. .. . 95
Instrument cluster indicator light .... . 95
Messages . .... .. ............. .... . 96
Notes on instrument cluster display ... . 95
Setting the steering wheel vibration ... . 97
Setting the warning point ........... . 97
LATCH ....... .. .. .. ........... .... 181
Description .. .. .. ............. .. .. 182
Guidance fixtures for lower anchorages 183
Installing a child restraint .......... . 184
Location . ..... .. .. .............. . 182
Mounting and releasing the anchorage
hook ..... .. .. .. .. ........... .... 184
Leather ........ .. ............. .... 213
Leather (cleaning) .. ................ . 214

294 Index
Panoramic sunroof ........... .. .... .. 41
Sun shade . . . . . . . . . . . . . . . . . . . . . . . . . 42
Parking . .. .... ........... ........ .. 82
Valet park ing ............ .. .. .. .. .. 40
Park ing brake ... . ...... ... .. .. .. .. .. 81
also refer to Electromechanical park ing
brake .. .. .. ................ ... ... . 81
Parking lights ............. .... .... .. 43
Parking system
C leaning camera lens ............... 208
Parking system advanced
Adjust ing the display .......... .. .. . 122
Adjust ing the warning tones .. .. .. ... 122
Rear view camera -parking mode 1 .. . 121
Rear view camera -parking mode 2 . .. 121
Safety precautions ................ . 118
Switching on and off ....... .... ... . 120
Parts replacement ......... .... .... . 285
Pass-through with ski sack . . . . . . . . . . . . . 66
PASSENGER AIR BAG OFF light .... ... . 1S6
Passenger protection ........ ..... .. . 188
Passive safety system ......... .. .... . 127
Pedals .. .. .. ............. .. .. .. .. . 132
Physical principles of a frontal collision . 138
Polishing .... ................ ..... . 209
Pollutant filter (automatic A/C system) . . 7 4
Power locking system . . . . . . . . . . . . . . . . . 31
Locking/unlocking the vehicle from in-
side . .. .. .. ................ ... ... . 34
Rear lid .. .. ... .... ...... .. .. .. .. .. 35
Selective unlock feature . .. .. .. .. .. . . 32
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Unlock ing and locking vehicle ... .. .. . . 32
Power seat adjustment Front seats . . . . . . . . . . . . . . . . . . . . . . . . S5
Rear seats .. ................ ... ... . S7
Power steering (servotronic) . .. .. .. .. . 194
Power windows . . . . . . . . . . . . . . . . . . . . . . 39
malfunction . . . . . . . . . . . . . . . . . . . . . . . 39
Pregnant women
Special considerations when wearing a
safety belt . . . . . . . . . . . . . . . . . . . . . . . 142
pre sense .. .. ... .. ..... ... .... .. .. . 188
Preventative passenger protection . . . . . 188
Programming the Homelink ® universal re-
mote control .............. .. .. .. .. . 124 Proper
occupant seating positions ... .. 128
Proper safety belt position ............ 141
Proper seating position Front passenger .. ............. .... 129
Occupants . .. .. .. .. .. ... ..... ... .. 128
Rear passengers .. ..... ........... . 130
Q
quattro ®
refer to All Wheel Drive . . . . . . . . . . . . . 194
Question What happens to unbelted occupants? 138
Why safety belts? ............. .... 137
R
Radiator fan ...... ................ . 231
Radio clock ... .. .. ............. .. .. . 26
Rain/light senso r
Headlights .. ...... ... ..... ... .. .. . 43
Intermittent (w indshield wipers) ...... 48
Sensor defective . . . . . . . . . . . . . . . . . . . . 21
Range (fuel level) . . . . . . . . . . . . . . . . . . . . 24
Reading lights ... .. ............. .. .. . 46
Rear fog lights .. .. ....... ...... .. .. . 43
Rear lid Automatic operation .............. .. 36
Emergency release ............... .. . 37
Escape handle . .. ............. .... 259
Opening and closing ..... ...... .. .. . 35
Rear light Defective . . . . . . . . . . . . . . . . . . . . . . . . . 21
Rear seats Adjusting individual seats ....... .... . 57
Entry assistance . . . . . . . . . . . . . . . . . . . . 60
Front passenger seat adjustment . . . . . . 60
Reclining rear seat ................ .. 59
Rear view camera
Reverse Parking .. ............. .. .. 121
Rear view mirror ... ....... ...... .. .. . 51
Rear window heating ................. 76
Recirculation mode (automat ic climate
control) .... .... ................... . 7S
Reclining rear seat . ... .. ....... ... .. . 59
Refrigerator
refer to Cooler . . . . . . . . . . . . . . . . . . . . 216
Refuelling .... .. .. .. ... ............ 220

296 Index
Servotronic (power steering system) ... . 194
Shiftpaddles . ... ... ...... ... .. .. .. . 115
Ship (transporting your vehicle) . .. ..... 277
Side airbags
Description ............... ... .... . 163
How they work ............ ... .... . 164
Side assist Activating and deactivating . . . . . . . . . . . 98
C leaning sensors ....... .... .. .. .. . 208
Description ............... ... .... .. 98
Informational and alert stage signals . 100
Messages in instrument cluster display 104
MMI settings ................ ..... 103
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 99
Safety tips ................ .. .. .. . 104
Sensor detection area . . . . . . . . . . . . . . . 99
Side curtain airbags ................. 166
Descript ion ................ .. .... . 166
How they work ........... .... ..... 167
Safety instructions ........ .... .... . 167
Ski sack
refer to Pass-through with ski sack ... .. 66
Sliding/tilting sunroof Emergency closing .......... .. .. .. .. 41
Emergency operation ...... .... .. .. .. 42
Opening and closing ....... ... .. ... . 40
Panoramic sunroof ............ .... .. 41
Snow chains ... ........... .. .. .. .. . 254
Sockets . . . . . . . . . . . . . . . . . . . . . . . . 63, 69
Solar operation (automatic climate con-
trol) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Sources of information about child re-
straints and their use ......... .. .... . 187
Space-saving spare tire ........ .. .... . 261
Spare wheel ............... ... .... . 262
Speedometer . . . . . . . . . . . . . . . . . . . . . . . 26
Speed rating letter code ....... .. .... . 250
Speed warn ing system ...... .. .. ...... 83
Sport differential . .......... ... .. .. . 106
Ind icator light . . . . . . . . . . . . . . . . . . . . . 22
START ENGINE STOP button ....... .. .. 79
Starting from rest . . . . . . . . . . . . . . . . . . . . 82
Starting off with a trailer .. .. .... .. .. . . 82
Starting the engine .................. 79 Steering wheel
Adjusting steering column ....... ... . 78
Easy entry feature . . . . . . . . . . . . . . . . . . 78
Indicator light . . . . . . . . . . . . . . . . . 17, 22
Shift paddles .... ............. .... llS
Steering wheel heating ............ .. 77
Steps for determining correct load limit . 247
Stopping the eng ine ... .......... .. .. . 80
Storage .. .. .. .. .. ............. .. .. . 70
Sunroof ........ .. .. .............. .. 40
Sun shades Emergency closing (roof) ......... ... . 42
Panoramic sunroof ............. .. .. . 42
Rear window ... .. ... .......... .. .. . 47
Side doors ..... .. .. .............. .. 47
Sun visors .. .. .. .. .. ..... ...... .. .. . 47
Symbols
refer to Warning/Indicator lights . .. .. . 11
T
Tachometer ..... .. .. ............ 11, 23
Technical modifications .......... .. .. 286
Temperature di splay .................. 23
T ether anchors .... ................ . 18S
Tether strap .. .. .. .. ..... ...... .. .. 185
The first 1,000 miles (1,500 km) and after-
wards ...... .. .. .. .. ........... .... 197
Tie-downs . . . . . . . . . . . . . . . . . . . . . 65, 134
Tips for the environment Sav ing fuel .. .. .. .. ... ....... ... .. . 68
tiptronic (automatic transmission) . .... 112
T ire pressure .... .. ............. .... 244
Tire pressure monitoring system ....... 256
Loss of air pressure ............. ... 25 7
Malfunction ..... ................ . 257
Resetting tire pressures ......... .. .. 258
Tires ..... .. .. .. .. .. ............. .. 238
Serv ice life . . . . . . . . . . . . . . . . . . . . . . . 248
speed rating letter code ......... ... 250
Tire manufacturing date ......... ... 250
T ire specifications ... .......... .. .. 250
T read depth . .. .. ............. .. .. 248
Uniform tire quality grading ......... 252
Winter tires ..... ................ . 253
Tires and veh icle load limits ........... 246